Merrimack River

Merrimack River
12/11/09

When you do your Q table use 0 degrees celcius temperature change at Sewalls and 3.7 degrees celicus for Bow Boat Landing!

Meaghan measuring pH

PSNH Merrimack Station

pH:
Sewalls Falls: 5.9, 7.6, 7.4, 7.4, 7.4, 7.4, 7.4, 7.4, 7.5, 7.4
Bow Boat Landing: 6.8, 6.7, 7.1, 7.0, 7.0, 7.0, 7.1, 6.9, 7.0, 7.0

Turbidity

Taylor gathering BOD sample

Spenser gather water sample for E.coli test

Sewalls Falls: 3ftu
Bow Boat Landing: 6ftu

E-Coli
Sewalls Falles 8 Colonies Per 10ml of Water

Basil measuring DO

Bow 12 Colonies Per 10ml of Water

Conductivity
Sewalls falls- 243 246 247 249 282 282 282
Bow Boat landing- 286 283 283 281 282 284 284

Phosphate
Sewalls Falls .001 mg/l
Bow Boat Landing .003 mg/l






DO
Sewalls Falls 12.83mg/l 13.09mg/l Temp 1.9 C
Bow Boat Landing 11.9mg/l 12.39mg/l Temp 5.3 C

BOD
Sewall's Falls 2.39 mg/l
Bow Boat Landing 1.49 mg/l

TTS
Sewall's Falls 46 mg/L
Bow Boat Landing 89mg/l